Drupal SEO - 5 Must Do Configurations. Some people say that system X is better than system Y for search engine optimization (SEO) purposes. This may be true to some degree. But I've never seen a serious Web CMS project that expected to use the software without any configuration or modifications.

Open Atrium: A Drupal Based Intranet Ecosystem. Open Atrium, now officially in its public Beta phase, is an open source starter intranet package that includes popular tools like blogs, wikis, a calendar, to-do lists, a ticketing system and microblogging.